The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

The objective of this experiment is to evaluate the effects of acid rain on plants.

This experiment uses personality assessments to evaluate the prevalence of specific character traits in left-handed and right-handed people

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Test the placebo effect in different groups of people.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

This simple activity is not only fun, it's also a useful way to organize children's closets — and offer kids some autonomy to boot.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

Do you think heat can affect a plant's growth rate?

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

This science fair project researches the most effective method to cut an onion and stay tear-free.

People have favorite flavors, but what about ants? Which ant food is the most popular?

Determine if gender affects the ability to identify different smells.

This science fair project examines whether ocean water can be made safe to drink.

This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

The objective of this science project is to investigate patterns in fingerprints among family members.